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If a researcher wishes to study the effect of, for example, a new drug on blood pressure, what type of testing should be used and why?
Should it be a z-test, a t-test, or an ANOVA for the analysis? Please help. What would the choice of test depend on? Would the hypothesis be directional or non-directional? Would the test be one-tailed or two-tailed? What would be the null and what would be the alternative hypothesis? I am so lost in this class so any help would be great!
If we know that 20 people will attend, what price should be charged per person to break even?
Assuming that students make their decisions independently, the number who accept has the B (1200, 0.75) distribution. If this number is less than 950, the college will admit students from its waiting list.
A recent of minimum wage earners found that 27% of them are 16 to 24 years old. Suppose a random sample of 500 minimum wage earners is selected. What is the probability that at most 150 of them are 16 to 24 years old? Use the normal curve approxim..
a survey of 100 recent fatal traffic accidents showed that 60 were alcohol-related. find the 95 confidence interval of
the following partial minitab printout of a regression analysis where x is the number of calories per serving and y is
the number of power surges at a nuclear plant follows a poisson distribution with an average of .5 power surgers per
a survey of adults ages 18-29 found that 82 use the internet. you randomly select 196 adults ages 18-29 and ask them if
a production process that fills 12-ounce cereal boxes is known to have a population standard deviation of 0.009 ounce.
Which of the variables below do you think will be roughly normally distributed? Please select all that apply.
Use a data to obtain 95% confidence interval using your formula from Number 7. Does your interval contain the correct value?
according to the centers for medicare amp medicaid services 16 of nursing homes received five stars in overall ratings
in a manufacturing process a random sample of 36 bolts manufactured has a mean length of 1.71 inches with a standard
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